Finding the Fourth Proportional to 83,685.18, 115,487.91 and 45,961.86

Step by Step Solution

1. Step 1: Write the proportion equation
   83,685.18 : 115,487.91 = 45,961.86 : x
2. Step 2: Convert to fraction form
   83,685.18/115,487.91 = 45,961.86/x
3. Step 3: Cross multiply
   83,685.18x = 115,487.91 × 45,961.86
4. Step 4: Simplify right side
   83,685.18x = 5,308,039,151.11
5. Step 5: Solve for x
   x = 5,308,039,151.11/83,685.18
6. Step 6: Final answer
   x = 63,428.66